Rail-fastening.



wiL AnnTALBorr, or SPOKANE, wnsmno ron.

RAILFASTENING.

Specification of Letters Patent. Patented Application iiledlebriiaryl,1916. Serial No. 75,5537. I i

' To all whom may concern:

Be it known that I, WILLARD TALno'r'r, a citizen of the United States,residing at Spokane, in the county of Spokaneand State of Washington,have invented a new and useful Rail-Fastening, of which the followingis'a specification. q

The device forming the subject matter of this application is a railfastening, and the present invention aims to combine, in a novel.manner, with a railroad rail and'with a tie, a screw of novel form, theends in view be-' ing so to arrange the parts that the upward ,pullofthe rail will have a minimum effect on the screw. so far as liftingthe screw is concerned, so to assemble the screw with the tie and withrespect to the rail that the horizontal thrust of'therail will have no Ithreads of the screw and to position the. 'screw with respect tothe railand the tie that a maximum hold forthe screw on the tie will beafforded: and, generally, to improve and to enhance the utilityof-devices of the sort shown in this application.

With the above and other objects in view which willappear 'asthe'des'cription proceeds, the invention resides in the'combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed, without departing from the spirit oftheinvention.

In the accompanying drawing-:Figure 1 shows in top plan, a railroad railassembled with a portion of a tie, through the instrumentality of thescrew forming a part ofthis application; Fig. 2is a vertical crosssection of the structure shown in Fig. 1; Fig. 3 is aside elevationofthe screw, 4

In the accompanying drawings,'the numeral, 1 designates generally a tieordinarily fashioned from wood. There appears in the drawings, arailroad rail 2 comprising a ball 3, a web 4, and a flange 5, the flange5 resting on the upper surface of the tie l. I

In carrying out; the present invention 'means for resisting the upwardpull of the agonal ead 7 a conical neck 8 and a shank -.9, the shank 9being'provided adjacent its lower end with threads 10 and terminating at1ts lower end in "a point 11. The lower face 12of the threads 10'are sodisposed" with respect to the-upper faces 14 of the threads as to definea right angle.- I

The invention contemplates, preferably, the use of two'screws disposedupon opposite sides of the rail 1 but to simplify the description, thesame will be confined to one screw;

The shank 9 of the screw 6 is threaded into; the tie 1 at an acute angleto the verti-- cal, and extends beneath the flange 5 of the rail asclearly shown in Fig. '2, thereby to increase. the. efliciency of thescrew as a rail. The conical neck 8 is firmly wedged into the tie 1 toact as a stop-waterfoi; the screwhole. The head 7 engagesthe uppersurface of the'flange 5 for the obvious parpose of-holding the rail,down onthe 't i e\' The inner edge of the neck "8 is in contact with theedge of theflange 5 of the rail and is vertically disposed, whereby thehorizontal thrust of the rail will have no vertical component tending tolift thescrew. The outer edge of the head 7'- engages. the tie 1 toserve as a brace against the horizontal thrust of the rail, Owing to thefact that the upper and lower faces 1412.o f the threads '10 of thescrew define a ninety degree angle, the hold of the screw on the tie 1is en hanced, notably when theinclined position and extending beneaththe flange thereby to 10( 4 increase the efiic1ency of the screw as ameans for resisting the upward pull of the rail, theneck being firmlywedged into the tie to act as a stop-water for the screw hole, th i headoverlappingthe upper surface of the flange, the/inner edge of the neckbeing in contact with the edge of the flange. and being verticallydisposed whereby the hor1zontal thrust ofthe railwill have no verticalcomponent. tending to lift the screw the 1'10 euter edge 0% we haadalga-aging the tie my own, 1 haw herele nfiixed my sigma-Ema same as abrace agmnst the honzoiglml thrust "mike presenw of twc nmesses. oi therail and the screw having threads the 1" 1 1 rfir w Q PPH' find lowersurfaces 035 which define f FIALBQi 5 a ninety degiee angle whereby thehold of "Witnesses: 1

*tiie lswew enthe tie will be increased. JOSEPH EvLmEAcHERN,

In tesiimony that I claim'ishe foregaing as D. D. MGKAY.

